Grinding machine



Jan. 1 1926. I 1,570,535

' w. 'SWIDERSKI Y GRINDING MACHINE Original FiledJu ly 7, 1923 ZShaets-Sheet 1 7 9 4 44 flzzzrw mzz WITNESS:

I Jan. 19,1925. 1,570,535

5 wrruzss:

w. SWIDERSKI GRINDING MACHINE I original Filed July 7. 192:5 2 Sheets-Sheet 2 INVENTOR AITORN EY Patented Jan. 19,1926.-

WALTERswinnnsxn onmonnon,MI HIG -'AssIenoR or ONE-HALFZTOY JAMES J. P

fKELLxfor moniton v romean.

: Q1 ma as MAC INE.

a pn atibii t "'iu1 if'192a; sei-iif N 'o. 650,066; 3eneived septenibr 9, 192 5.

To all whom it may e me Be it known ;thatfI :,".V nriiR SwinnRsnI, a citizen .of the United States, residing I the city of Monroe, 706i WestfEighth St in thecounty of Monroe-and State of Mich j igan, have invented new' and useful Improvements in Grinding Machines, of which the following is a specificationi My present invention has jreferencefto: an.

attachment for grinding wheels such are i used injfou'ndries,.steel'mills, etc, "and .whereby castings or other [articles to be ground or dressed by' the wheel mayfbe fed thereto without necessitating theoperatorlstanding in front ofthewheeL-a d' thereby rendering the grindin'g operation less dangerousfto 'the.,fop'erator, as well as permitting the operatorflto'fhave a better view of his work, f and also wh'erein the vibration usually imposed on the body: ofjan operator in such 'process, will be jentirely overcome.

A further to arrange the same most conveniently"with respect to the operator. 7

To the attainment of the foregoing and other objects which willprese'nt themselves asthe natureof the invention progresses, reference is to be had to the drawings which accompany and which form part of this application.

In the drawings: Figure 1 is a.side elevation of an, ordinary grinding machine provided with the i 33 of Figure 1. r a t Figure 4 is a sectlonal view on the line improvement.

7 Figure 2 1s a top plan view thereof.

Figure 3 is a sectional view on the line 4 4 of Figure 2. Figu 5-5 of Figure 4c.

Fig. movable j aw of the feed block.

The frame of the grinding machine .is

indicated in the drawings by thenumeral 1. As both the frame and the mechanism for turning the emerywheel 2 are old and well-known in the art, .a detailed descrip re 5 is a sectional view on-the line is an enlarged detail view of the retion thereof' will not be attempted. The

frame L 1 is provided, in the usual manner,

at onefside'f thereof "and adjacent to they I wheel-1.2, with. an outstanding bracket, 33

slotted to, receivetherethrough a binding bolt 48 that also passes through a. slotted somewhat thickened plate 5.

In addition to the slot through what the? bolt passes thei'plate 5 is provided ad,- fjacent' -to its outer endwith a round open; 'ing, and in the present instance Iipass 7 through this opening a tubular post 6.. The; i

post is secured at one end of, a: substantially U-shapedfwork'ing' supporting .member 7 grooved wheel 8.

Arranged for slidable Inovement between At its outer and :open endthe frame has 1 ournaled between 'thef' "arms ithereof 1 a1 9 the arms of the work supportingfmember there is" the channeled base of ,a feed block 9. The feed block has at its inner'endan upstanding lug 10., A preferably ribbed jaw member 18, has a socket' l i) toreceive lthe lug10therethrough. v a 1 I issecuredto the. 7

here

On its outer end block 9 acable 11 which fis trained *overf {the grooved wheel 8 i and which. has'attachedf toiits free end a weightl12Q 7 facefofi the I. feed? block 9, below its lug-1O there isf'a cable? Secured to the under l3 which is trained overa sheavefwheel bearingsbetween the arms of the work holder or supporti7. The cable 13 is trained through the tubular post '6 which is either integrally formed with, or secured on the work holder 7 and has its outer end 14 whose shaft is journaled'ih suitable.

secured, as'at 15' toa pedal 16 which is pivoted, as at 17 to a leg of the frame 1. The casting or other article to be ground is placed upon the work holder or support 7, the same beingin the path of, .contact with the'jaw 18 on the lug 10 on the feed block 9. The operator places his foot on the pedal 16, and by depressing the same will cause the feed block to move the work longitudinally overthe workholderor sup-v port 7 toward the emery Wheel 2. The

pressure of the work against the wheel is,

. of course, regulated by the weight of, pres sure on the pedalf 16, andwhen thepedal' is' relieved of such" weight the weight 12 able jaw 18 to its initial outward position will; move the feed block 9 the rem'ov- V on the feed holder '7. Such movement of the feed block 9 is limited by it contacting engagement with the grooved wheel 8.

With my improvement, the operator may station himself at any convenient point with respect to the wheel, and. as the. work holder is mounted for both longitudinal and rotary movement, the casting'or work thereon may be accurately fed to the wheel. The operator is in a position to at all times observe the grinding action without danger l. In combination. with a framehaving a revoluble grinding wheel thereon, of means for advancing work to the wheel, comprising a plate pivotally associated with. the frame and susceptible to rotary and longitudinal adjustment thereon, a work holder pivotally associated with the, plate, a feed.

block carrying a jaw slidable on the work holder, Weighted means holding the block in oneposition, and pedal operated means for moving the block in the direction of the grinding wheel.

2. In combination with a frame having a revoluble grinding Wheel thereon, and an outstanding slotted bracket on one side of the frame, of a means for. feeding workto the grinding wheel, comprising a slotted. plate pivotally associated with the slotted bracket and susceptible to revoluble, and

longitudinal movement thereover, a bifurcated work holder pivotally associated with the plate, a work feed blockhaving a channeled base received in the bifurcated portion of the work. holder, a jaw on thefeed: block, weighted means for moving thefeed block outwardly on the work holder and pedal operated .means for moving. the. feed block in an opposite direction to feed the work toward the grinding wheel.

3. Incombination with a frame having I a revoluble grinding wheel thereon and a slotted bracket extending'from one side of the frame, of a means for supporting and,

feedingVwo-rk to the, grinding wheel, comprising a somewhat thickened slotted plate arranged over they bifurcated bracket and adjustably pivoted thereto to permit of: a rotary and longitudinal movement of the plate on the bracket, said plate having'its outer end formed. with an opening, a work I supporting member which is bifurcated for the major portion of its length and which hasat one end a depending hollow tubular post which is received through theopening in the plate, said work. supportinginember having sheave wheels ournaledm thebifur catedzportion thereof, a work feed blockhaving a base, whose sides are-channeled and'are received in the bifurcated-portion. of-the.

support, said work feed block having, an up.-

standing lug,, a removable jaw on the lug, a;

cable secured to: the rear. of theblock journaled over theouter. pulley ofithesupport and having a weight secured thereto, a.

second, cable, connected .to ,the forward :end ofthe block, journaled over the sheave wheel at the forward" endnof. the support and: guided through the tubular post, and a pedal ,pvotally secured to. theframe and to which the last mentioned, cable is attached.

Intestimony whereof, I. aflix my signa- I ture.

' WALTER SWIDERSKI. 

